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JAMES C. OOCHR ANE, OF ROCHESTER, NEW YORK. Letters Patent No. 62,316, dated February 1'26, 186-7.

IMPROVEMENT IN GEATES.

TO ALL WHOM IT MAY CONCERN:

Be it known that I, JAMES C. COGIIRANE, of the city of Rochester, county of Monroe, and State of New York, have invented a new and useful Improvement in Grates for Furnaces and Stoves and I do hereby declare that the following is a ful1,'clear, and exact description of'the construction and operation of the same, reference being. bad to the annexed drawing, making a part of this specification.

1. I construct a grate with the upper surface slightly inclining downward from the circumference toward the centre, as shown in Figure 5. I I

2. In the centre of the grate, and egitending below it, loonstruct a coder, made as represented in Figure 2, open at, the top and on the sides, and closed with bars at thebottoin and on the sides, the nppersurface of the bottom inclining downward from front to rear. Frorh the under surface a pin extends to fit in a socket of the yoke, hereafter mentioned. The grate, with the cofier, is shown in Figures3 and 5, and a front elevation of the fire-pot in Figure 6.

3. I construct a depressed yoke, as shown in Figure 4, to extend across and hang in lugs at the bottom of the fire-pot, for the cofi'crto rest upon, and so that the grate may .be vibrated or shaken from right to left, and

. from left to right, and also dumped bypushing down in front, as shown infig. 5. The yoke has a socket in the centre, to receive the pin 0f.the cofl'enas shown in fig. 4.

By this improvement two objects are accomplished:

1. The air is admitted to the centre of the fireythrough the cotter, horizontally as well as vertically.

2. When the grate is'shaken by a horizontal rotary motion the slate, ashes, Zita, are brought from thecircumference toward the centre, and fall into the cofi'er, from which they may be readily pushed into the ash-pit with a poker, and thus avoid the necessity of dumping the grate. V

That I claim as my invention, and desire to secure by Letters Patent, are the following improvements:

1. The cofi'erfconstructed in the centre of the grate, and extending below it, substantially as andfor the purposes described.

'2. The combination of the coffcr with the grate, substantially as described.

3. The combination of the colfer, grate, and depressed yoke, substantially as described.

JAMES C. COCHRANE.

, Witnesses:

Win. J. SHERIDAN, R. B. WILLIS. 

